Union Pacific’s historic steam locomotive Big Boy No. Seventeen of the Big Boy engines were scrapped, while the remaining eight were put on display in various museums. This is a Fusion 360 model of the locomotive bed (frame) for the rear engine of a Union Pacific 4-8-8-4 "Big Boy" steam locomotive. The locomotive had not run in 60 years! Probably the largest locomotive ever built, a Union Pacific Big Boy steam engine is a sight to behold. The author is an expert on Union Pacific steam locomotives and was, for a time, employed by the UP to take photos for company use. 4014 was coupled with Living Legend No. Big Boy No.

I worked from the original drawings which are available from the Union Pacific Historical Society. 844 steam locomotive for the trip.

They could develop 7,000 horsepower and easily ran at their designed maximum speed of 79 mph (110 kmh), consuming 100,000 pounds of water and 22,000 pounds of coal per hour as they did so. Union Pacific’s No. A small group gathered along the railroad tracks crossing Richmond Avenue late Wednesday afternoon to watch a rare sight. As of 2016, seven of the Big Boys are still on display. Although it was articulated, the Big Boy was not a compound steam engine, which is the second hallmark of a true Mallet. This was a big deal because the restoration of the Big Boy, which was the largest steam locomotive ever built, had just finished a couple of days before. And this year, for the first time in almost six decades, you can see one in action as Big Boy 4014 races around the western half of the USA. Big Boy 4014 Videos UP 4014 News Shop Big Boy 4014 Big Boy Returns! The world's largest steam locomotive returns to the rails. 4014 heads west after leaving Evanston, Wyo., on the way to Ogden as part of the celebration of the 150th Anniversary of the Transcontinental Railroad’s Completion on Wednesday, May 8, 2019.

Union Pacific "BIG BOY" The twenty-five UP 4000 Class 4-8-8-4s were the biggest steam locomotives ever built. I use links to improve your experience using this website. This book is very well-written, and has lots of great stories about Big Boys and many great steam era photos of Big Boys in action. I think this may be my seventh or eighth pass at modeling this structure (and the companion front engine). The Big Boy was also not a Mallet-type locomotive.

Up until five years ago it sat in a museum for decades in Los Angeles. One of the biggest and most powerful steam locomotives in history has returned to life: Union Pacific’s Big Boy 4014. Now it was finally operational and, along with the steam-powered Union Pacific #844, on the move westward.